Ineed with these 2 questions

question: by completing the square, solve for x in the following equations:

a)

b)

see explanation

Step-by-step explanation:

(a)

x² - 6x + 4 = 0 ( subtract 4 from both sides )

x² - 6x = - 4

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 3)x + 9 = - 4 + 9

(x - 3)² = 5 ( take the square root of both sides )

x - 3 = ± ( add 3 to both sides )

x = 3 ± ← exact solutions

(b)

4x² + 16x + 9 = 0

To complete the square

The coefficient of the x² term must be 1

Factor out 4 from 4x² + 16x

4(x² + 4x) + 9 = 0

add/subtract ( half the coefficient of the x- term )² to x² + 4x

4(x² + 2(2)x + 4 - 4 ) + 9 = 0

4(x + 2)² - 16 + 9 = 0

4(x + 2)² - 7 = 0 ( add 7 to both sides )

4(x + 2)² = 7 ( divide both sides by 4 )

(x + 2)² = ( take the square root of both sides )

x + 2 = ± = ± ( subtract 2 from both sides )

x = - 2 ± ← exact solutions

it would to have a graph or something ! but i had this question so its false

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is